Device for unshipping endless traveling ropes from their pulleys.



PATENTED JAN. 9, 1906.

G. LEUE. DEVICE FOR UNSHIPPING ENDLESS TRAVELINGROPES FROM THEIR PULLEYS.

APPLICATION FILED SEiT. 29, 1904.

UNITED STATES IAIIENT' QFFIGE Specification of Letters Patent.

Patented Jan. 9, 1906.

Application filed September 29, 1904- Serial No. 226,589.

1'0 all wiwvn it Trmy concern:

Be it known that I, GEORG LEUE, a citizen of the Empire of Germany, and a resident of Berlin, Germany,(whose post-office address is Kurfiirstendamm 24,) have invented certain new and useful Improvements in Devices for Unshipping Endless Traveling Ropes from their Pulleys, of which the following is a specification.

My invention relates to endless-rope systems employed for conveying between two points of variable distancesuch, for instance, as between two ships or between a ship and the shore, as described in my previous application, filed March 10, 1904, Serial No. 197,478. In using such appliances it is customary to connect the ship being supplied with the supply-ship or with the shore by a hawser, and after connecting the conveyor from the point of supply to the ship to be supplied to keep up the necessary tension by towing one ship from the other when the supply is coming from a ship or by keeping the engines in motion when the supply is coming from shore, to which the vessel is attached. Owing to the liability of the hawser to break under these conditions, it becomes desirable to provide means for promptly (preferably automatically) disconnecting the conveyerrope at one or the other of its points of at tachment, so that the conveyer-rope or other portions of the system may not be broken.

My present invention provides means for accomplishing this detachment by unshipping the rope from one of its pulleys. In the accompanying drawings, in which one embodiment of the invention is shown, by way of example, it is connected with the mast of the ship.

Figure 1 is a side elevation of the apparatus secured to a mast; and Fig. 2 is a plan of the apparatus, partly in section, during the unshipping operation.

The general arrangement of the transport appliance is assumed to be that ordinarily adopted.

1 is the mastof one of the vessels, and to it a bracket is secured, presenting bearings 2 for the horizontally-swinging arm 3. At the free end of this arm is pivoted, by means of a vertical pin 4, the horizontally-swinging bracket 5, which carries the horizontal shaft 6 of the grooved pulley 7, round which the endless ro e 8 runs. The pulley-bracket 5 is bifurcate and the extremities of the two limbs are connected by a bridge 9, presenting a central bulge 10, which protrudes into the recess in the arm 3 and lies in the same plane as the bridge 11 of the latter. The bridge 11 and bulge 10 are perforated coincidentally at 12 and 13, respectively. On the mast side of the perforation 12 there is secured to the bridge 11 a bracket 14, in which is mounted a grooved pulley 15, the boss being provided with an internal screw-thread of high inclination and working as a nut on a screw-pin 16, the smooth end of which ordinarily projects through the hole 12 of the bridge 11 into the hole 13 of the bulge 10 on the bracket 5, thus hplding the arm 3 and bracket 5 in the same ane. p 18 is a set-screw projecting through the wall of the bridge 11 into the longitudinal slot 19 of the pin 16, whereby the latter is prevented from rotating on its longitudinal axis. 17 is a rope wound round the pulley 15 and passing in taut condition to the other ship, where it is secured.

Should the cable connecting the two ships break and the two vessels move farther apart, the rope 17 will rapidly unwind from the pulley 15 and set the latter in rotation. In consequence of the sharply-inclined thread of the screw-pin 16 the latter will with extreme rapidity work out of the hole 13 of the bracket 5,which, owing to the pull of the endless rope 8, will now be drawn out of its normal position for work into the inclined position shown in Fig. 2, whereupon the rope 8 will be automatically unshipped from the pulley 7.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a device of the character described, the combination of a pulley, a rope passing over said pulley, a swinging mounting for said pulley, a swinging arm to which said mounting is jointed, means for securing said mounting and arm together, and automaticallyoperated mechanism for releasing said securing means to permit swinging movement of the mounting relatively to the arm.

2. In a device of the character described, the combination of a pulley, a rope passing over said pulley, a swinging mounting for said pulley, a swinging arm to which said mounting is jointed,- a pin passing through perforations in said arm and sald mounting for securing them together, and automaticmechanism comprising a pulley fixed against axial movement and having screw-thread 15 connection with said pin, and a rope adapted to extend to a distant point and wound upon the pulley to im art rotation thereto upona change in the re ative positions of the pulley and the distant point.

In testimony whereof I afiiX my signature in presence of two witnesses.

GEORG LEUE.

Witnesses WOLDEMAR HAUPT, WILLIAM MAYNER. 

